“Nevertheless, the sentiment which it [the ‘unhelpful’ Guidance statement] expressed was based on sound instinct because I think it will only be in exceptional circumstances that it would be reasonable to expect a child who has a home with one parent to be provided under Part VII with another so that he can reside with the other parent as well. It seems to me likely that the needs of the children will have to be exceptional before a housing authority will decide that it is reasonable to expect an applicant to be provided with accommodation for them which will stand empty for at least half of the time. I do not say that there may not be such a case; for example, if there is a child suffering from a disability which makes it imperative for care to be shared between separated parents. But such cases, in which that child (but not necessarily any sibling) might reasonably be expected to reside with both parents, will be unusual.”